Apparatus for handling forgings.



PATENTED SEPT. 29,1903.

' R. F. DEVIN'E.

APPARATUS FOR. HANDLING FORGINGS.

APPLIOATIOH PIL'BD MAY 8, 1902.

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PATENTED SEPT. 29, 1903.

. R. F. IRVINE. APPARATUS FOR HANDLING FORGINGS.

APPLICATION FILED MAY 3. 1902.

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PATENTBD SEPT. 29, 1903.

R. F. DEVINE.- APPARATUS FOR HANDLING PORGINGS.

APPLICATION FILED HAY 8. 1992.

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.PATENTED SEPT 29, 1903.

No. 740,100. R. F. DEVINB.

APPARATUS FOR HANDLING FORGINGS.

APPLIOATIOK FILED M418, 1902.

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Patented September 29, 1903.

PATENT ROBERT FIDEVINE, or ELLWOOD CITY, PENNSYLVANIA.

' AYPVPARATUSFOR HANDLING FORGINGS."

srncrrrcn'rron forming part of Letters Patent No. 740,1 0, datedSeptember 29, 1903.

To aZZ whom it may concern:

Be it known that I, ROBERT F. DEVINE, of Ellwood City, Lawrence county,Pennsylvania, have invented a new and useful Apparatus for HandlingForgings, of which the following is a full, clear, and exactdescription,

reference being had to the accompanying:

drawings, forming part of this specification, in which Figure 1 is apartial side elevation, partly in section, showing one form of myimproved apparatus. Fig. 2 is a front elevation of-the same, and Fig. 3is a cross-section showing the tipping mechanism. Fig. 4 is a partialside elevation showing the connections for moving the forgingslongitudinally. Fig. 5

is an enlarged detail view of the sprocket wheel device I prefer toemploy. Fig. '6 isan end view showing liners for the jaws;

tion, and is designed to aiford a holder which may be readily adapted towidely-different classes of forgings and to provide for adj ust-l ingthe axis of rotation of the holder to correspond with the eccentricityof the different classes offorgings; further, to provide simple andeffective mechanism fortilting the forging and for moving it endwise inconnection with the means for rotating it as desired, and also to affordimproved means for twisting the metal being forged.

In the drawings, referring to the form of Figs. 1 to 6, inclusive, 2represents a tubular holder containing opposite longitudinally- Each ofthese jaws has a dovetailed connection with the interior of thecylinder, and the contacting surfaces of these jaws in the cylinder aretapered or inclined, as shown in Fig. 1. The front portions of the jawsare shown as having angular recesses to grip a variety of forms; but thejaws are removable and a number of aws of different shapes, all fittingin the same cylinder, will wheels to the other.

recessed, as before.

Application filed May 851902. '-Seria1No.106,485. (No model.)

be provided to fit different sizes and shapes of forgin gs.

The jaws'are moved longitudinally by link connections 4, withscrew-threaded rods 5, which project through the rearhead 6 of thecylinder and are, provided with adjustingnuts 7. Then the proper jawsare inserted and the end of the forging placed between .them, the jawsare drawn rearwardly by the screw-bolts and the inclined convergingfaces move them toward each other to grip the piece.

2 To turn the forging, Iprovide the cylinder with a sprocket wheel or aplurality of sprocket-wheels, if necessary. Thus in Fig. 51 show asprocket-wheel 8, which is splined upon the cylindrical shell 2, andalso an eccentric sprocket-wheel 9, similarly splined to the shell, sothat the supporting sprocketchain 10 may be changed from one ofthe Byproviding a positive connection between the chain and the holder I canlower the hammer on the forging and then by actuating the chain cantwist the forging by the same means provided for rotating it. Thispositive connection I consider broadly new. adapted for forging duplexor triplex crankshaftsor other forgings having arms or pro .jections atdifferent angles and without spe cial appliances for this purpose.

The eccentric sprocket-wheel has its axis arranged to registersubstantially with the axis of the eccentric portion of the forging.

Thus in thecase of forging a crank-shaft the supporting-chain would beplaced on the con centric sprocket-wheel while forging the end portionsand then be transferred to the eccentrio sprocket-wheel while forgingthe eccentric or crank portions of the shaft. In Fig. 5'Ihave shown thecylinder 2 as having four jaws 3- in order to fit the end portion ofsuch forging, two of these jaws being angularly This feature of aneccentric wheel or portion of the cylinder forms an important part of myinvention, as it does away with the present many difiiculties in forgingmetal having eccentric portions, and

I intend to cover the'same broadly as we'll-as.

the feature of using the removable jaws with in, the cylindrical holder.7

The apparatus is thus I have shown the cylindrical holder in this formas composed of two semieylindrical halves secured together by boltspassing through intermeeting flanges 11, and the sprocket or other chain10 leads upwardly to a sprocket-wheel or pulley 12, which may be raisedor lowered by block-and-tackle mechanism 13, suspended from an overheadtrolley 14, movable upon a swinging crane jib 15. The shaft of the wheel12 is provided with a pulley 16, connected by sprocket-chain 17 to thepulley 18 on the trolley, the chain 17 extending in opposite directionsover the wheel 18 and thence over guide-wheels 18 and to and around awheel 15, which may be actuated by hand through gearing, as shown inFig. 11. By these means the holder may be rotated as desired to turn themetal when it is at the level for forging.

The rear head 6 of the holder is formed integrally with a longpipe-section 19, having collars 20, secured to it on either side of aloose collar 21, having a depending finger 22. This finger is secured toor actuated by an endless chain 23, passing over end wheels 2-l beneaththe ground level. The rear pulley 24 is on a shaft having a smallerwheel 25, connected by chain 26 with a wheel 27. The shaft of wheel 27is provided with a pinion 2S, intermeshing with a toothed wheel 29,whose shaft is provided with an actuatinghandle 30. This handle is inthe rear of the holder and convenient to the operator, who by turningthe crank can move the forgings longitudinally upon the hammer-die.

In order to tip the forgings to allow longitudinal movement, I provide acam device 31. (Shown in Figs. 1 and 3.) This cam is mounted on a shaft32, supported in the arms of the hanger and having a pinion 34,inter-meshing with a toothed wheel 35, actuated by crank 36. The hanger33 is provided with an upper yoke 37, having a roller 38, traveling upona supplemental swinging jib 39, pivoted to the main jib 15. The yoke isbraced by small rollers 40, traveling upon the under face of the I-beamforming the track. By turning the handle 36 the cam is forced down uponthe tubular extension 19 and the forging is tilted upwardly to allow itsbeing moved along on the anvil or die.

The form of the inner jaws within the holder may be varied widely. Thusin Fig. 6 I show the jaws 3 as being provided with liners 41 to enablethem to fit the forging without removal or insertion of. other jaws.

In Figs. 7 and S I show the cylinder as provided with opposite pairs ofyoke-shaped jaws 42. These yokes are of U shape, and their legs projectthrough oppositely-located slots in the cylinder and are detachablysecured to fillers 43. A screw 44 projects through each filler orcross-piece and engages screw-threads therein, its inner end bearing ona strengthening-plate 45, while its outer head is provided with holes toreceive a rod for turnin In this form the end of the forging is slippedbetween the inner portions of the yokes, which are then pulled tight togrip it by turning the screw-bolts.

In the form of Figs. 9 and 10 the holder has a solid front end portion46 with a vertical slot receiving links 47, arranged in pairs andpivoted to the holder and to the recessed jaws. The jaws are guided inthe slot and are moved by pivoted rear links 48, connected to a rod 49,extending through the rear head and having a screw-threaded portionengaged by a nut 50. By turning the nut the jaws can be quickly adjustedand clamped.

Many other forms of jaws may be devised for use in connection with thecylindrical holder, which is turned to turnthe forging.

The ad vantages of my invention result from the simplicity of theapparatus and its adaptability to a great variety of shapes and sizeswithout changing the holder or shell. The liability to breakage ispractically done away with and the expensive counterbalancing ofeccentric pieces is not necessary on account of the use of the eccentricpulley or wheel on the shell. The device will turn square or angularpieces as easily as rounds, and the work may be handled with greateconomy. The device aifords a simple and convenient means for turning,tipping, and moving the forging longitudinally, and a sleevebalance-weight can be easily adjusted and fastened on the tubularextension of the holder without stopping the hammer.

One ormore sprocket-wheels or pulleys may be used on the cylinder, andthese may be removable or secured to'it, but are preferably loose toallow longitudinal adjustment for variations in the weight, and the formand arran gement of the parts may be varied in many ways withoutdeparting from my invention.

I claim- 1. In forging apparatus, a holder for the end of the metal,comprising a shell, removable jaws within the shell, a hanger arrangedto support the shell in horizontal position and hand-controlledmechanism for turning the shell part of a revolution, substantially asdescribed.

2. In forging apparatus, an inclosing shell, sets of removable jawsarranged to fit within the shell, means for clamping the jaws upon themetal, a hanger arranged to support the shell inhorizontal position, andhand-controlled mechanism for turning the shell intermittently duringthe forging operation substantially as described.

3. In forging apparatus, a holder for the end of the metal having aneccentric annular portion, and hand-controlled mechanism for turning theholder part of a revolution; substantially as described.

4. In forging apparatus, a holder or shell having a concentric and aneccentric wheel thereon, and means for turning the same; substantiallyas described.

5. In forging apparatus, a shell or holder having inner removable jaws,an eccentric Wheel or annular portion on the shell, and a supporting andturning chain or connection extending around said wheel; substantiallyas described.

6. In forging apparatus, a holder, a chain device for supporting androtating the holder,

. mechanical connections for moving the holder 7. In forging apparatus,a tubular holder having a rear extension, a projection upon theextension, mechanism having a chain connection arranged to act upon theprojection to move the forging longitudinally, and tipping mechanismtraveling with the holder; substantially as described.

8. In forging apparatus, a holder, a cam device arranged to act upon therear portion of the same; and mechanism for actuating the cam to tip theforging; substantially as described. v

9. In forging apparatus, a holder, a chainsupport for rotating the same,and an overhead depending hanger having a cam device arranged to tip theforging; substantially as described. 7

10. In forging apparatus a cylindrical shell, removable jaws Within theshell arranged to grip the piece, an eccentric wheel or forging on theshell, a supporting and turning chain engaging said eccentric wheel, arear extension for the holder, a cam device arranged to act upon saidextension to tilt the metal, and means for moving the holderlongitudinally; substantially as described.

11. In forging apparatus, a holder and a supporting-chain or flexibleconnection having a positive connection therewith, whereby the metal maybe twisted while engaged by the forging apparatus; substantially asdescribed.

12. In forging apparatus, a cylindrical holder having removable jaws,and a chain engaging projections upon the holder; sub stantially asdescribed.

In testimony whereof I have hereunto set my hand.

ROBERT F. DEVINE.

\Vitnesses:

J. G. KRETH, TONY TURNER.

